Signaling system



y 1933- E. M. BOUTON ET AL SIGNALING SYSTEM Filed Jan. 28, 1929 2 Sheets-Sheet l 00 H mi 00 N T l R 5 m MM r5 a 3 a /W y 1933- E. M. BOUTON El AL 1,909,090

SIGNALING SYSTEM 2 Sheets-Sheet 2 Filed Jan. 28, 1929 Ff 7.2V s W Patented May 16, 1933 UNHTED STATES PATENT OFFICE EDGAR M. BOUTON, OF CHICAGO, ILLINOIS, AND YVILLARD S. ATKINSON, OF ASHLAND, NEW JERSEY, ASSIGNORS TO ATLANTIC ELEVATOR COMPANY, INC., A CORPORATION PENNSYLVANIA, AND XVESTINGI-IOUSE ELECTREO AND IQAIIUFACTUEING GOM- PANY, A CORPORATION OF PENNSYLVANIA SIGNALING SYSTEM Application filed January 28, 1929 One object of our invor ion is the provi s' A of a sgnaiing system that s simple and e ien in operation and capable oi being dily and e;onomically manufactured and installed.

Another object of our invention is to provide for signaling the attendant on a car for a stop at a floor at any time that the car is in such position that it can be stopped at the floor for which he signal is given.

Another object of our invention is to pro- V a signaling system for an elevator having a slow-down distance greater than the tance between the two doors, in which the car, when standing at one floor, may be signaled to stop at the next floor, by the em pic-yment of a few signal-giving devices and a coimnon means for operating them.

Another object oi the invention is the provision of a signaling system in which one push button will operate different signals in a car in accordance with the position of 1e car with reference the floor for which V aling system by means of which n l .n or designed to he operated at high speed may set a signal for a stop at a floor w iich will indicate the point in the car travel at which he must operate the carcontrolling devices to stop the car, in order that the car may be stopped accurately level with the signaled floor.

Other objects of the invention will, in part, be obvious and will, in part, appear hereinafter.

For a fuller unoerstanding of the inven- -"on, reference may be had to the following -ailod description taken in connection h the accompanying drawings, in which i rgurcs l and 2- are diagrammatic views the control circuits and apparatus eminvention as applied to a or bodying our or elevators.

i2 ,1 l t rtcieiinig t the cravings, e ova or cars A and B are illustrated adapted to be op- .oanh

Serial No. 335,614.

erated between a plurality of floors, by means of hoisting motors (not shown) which are governed by means of suitable controllers comprising up direction switches 11 and 12 and down direction switches 13 and i l. lVhile two cars are shown, it is obvious that our system may be applied to any number of cars operating between any number of floors.

The cars are of the high-speed type in which the distance required for deceleration from normal high speed to stop the car level with a floor is greater than the distance between two adjacent floors. We have, therefore, provided each car with two signal devices, preferably electric lamps, the lamps HLA and HLB for indicating, while the cars are moving at normal high speed, that a stop is to be made, and the lamps SLA and SLB for indicating, while the cars are standing at a floor or operating at a speed below high speed, that a stop is to be made at the next floor.

The circuit of the standing lamp SLA in car A is connected to contact members 15 on the up direction switch 11 and contact members 16 on the down direction switch 13 in such manner that the lamp may be energized only while the car is standing at a floor, as will be more fully described hereinafter. The standing lamp SLB in car B is also connected to contact members 17 on the up direction switch 12 and contact members 18 on the down direction switch 14 in a manner similar to the standing lamp in car A.

In order that passengers, when waiting at a floor landing, may cause operation of the signal lights to give the attendant on the car a stop signal, a pair of signal-registering push buttons is mounted at each of the landings intermediate the terminal floors, one for up travel and one for down travel. The up and down buttons for the second floor are respectively designated as 2U and 2D, while those for the third, fourth and fifth floors are designated as 3U and 3D, 4U and 4D, 5U and 5D.

Associated with the respective push buttons are push-button relays 2UR2DR.

3UR 3DR, 4UR-4DR, 5UR5DR, respectively, for holding the push-button signals until they are completed or reset. Also associated with the respective push buttons J are reset relays 2US and 2DS, 3US and 3DS,

4US and IDS, 5US and 5DS.

Push buttons A2, A3, A4 and A5 are mounted on the car A and similar push buttons B2, B3, B4 and B5 are mounted on the car B to be operated by the attendant in the car when he desires to set the signal-giving devices to indicate stops to let passengers get off.

A hold-down coil 19 is mounted in the car 5 A adjacent to the push buttons A2 A3-A4 the car. The resetting means compris all up limit switch ULA and a down limit switch DLA of a type which will operate through an extension 21 on the car striking one of the pivotal extensions 22 or 23 on the limit switches to open the circuit momentarily as the car passes in one direction. Upon the return of the car, the pivotal extension on the switch allows the car to pass by without again opening the switch.

The car B is also provided with a holddown coil 24, an up limit switch ULB and a down limit switch DLB for the same purpose as those described in connection with car A. The up limit switches ULB and DLB are respectively provided with pivotal extensions 25 and 26 that are adapted to be actuated by an extension 27 on the ear B.

For the purpose of signaling a waiting passenger that a car is approaching in the direction which he desires to go, each car is electrically connected to indicating devices, preferably electric lamps, which are mounted outside the elevator shaft at the floor landings. Each of the top and bottom floors is provided with a single lamp for each car, and each of the intermediate floors is provided with a pair of lamps corresponding to each car, one of said lamps serving to indicate that the car is approaching in a downward direction and the other in an upward direction. The floor lamps corresponding to car A are designated as Ll, L2D, L2U, L3D, L3U, L4D, IAU, L5D, LSU and L6, respectively, while the floor lamps L1, L2D, L2U, L3D', L3U', L4D', TAU, L5D', L5U, and L6 correspond to car B.

In order that the various circuits for the a push buttons, floor lamps and signal devices in the cars may be connected in accordance with the position of the cars, the cars A and B are provided, respectively, with floor selectors FSA and FSB. The floor selectors may be located at any suitable point; for example, in the pent house or in the elevator shaft.

As shown, the selectors are similar to those usually employed in elevator signaling systems. The selector FSA for car A is provided with a set of up contact segments and a set of down contact segments. The up contact segments are arranged in groups under brushes, CU, DU, EU, FU and GU, and the down contact segments are arranged in groups under brushes HD, ID, JD, KD and LD that are mounted upon a movable arm MA which traverses the contact segments. Similarly, the selector FSB for car B is provided with up contact segments which are arranged in groups under brushes MU, NU, OU, PU and QU, and down contact segments, which are arranged in groups under brushes RD, SD, TD, UD and VD that are mounted upon a movable arm MB.

The movable arm on each selector is operated by a screw S which is driven by some part of the operating mechanism of the car which the selector serves.

The frictional engagement between the arms and their operating screws, causes the arms to bear upon the up contact segments when the cars are traveling upward and upon the down contact segment-s when the cars are moving down.

The groups of up contact segments under brushes CU and DU control the lighting of the floor lamps by the floor push buttons and the car push buttons and include contact segments for each of the 2nd, 3rd, 4th, 5th and 6th floors.

The group under brush EU connects the high-speed signa a mp HLA with the floor push buttons and the ear push buttons.

The group includ s a contact segment for each of the 3rd, 4th and 5th floor up push buttons, a c 1. tinuous strip for the highspeed lamp HLA, and 3rd, 4th and 5th floor contact segments for the car push buttons.

The group under brush FU connects the standing signal lamp SLA with the floor push buttons and the car push buttons. lt includes contact segments for the up push buttons at the 2nd, 3rd. 4th and 5th floors, a

continuous contact strip connected with the standing signal lamp, SLA, and contact segments for the car push buttons.

The group under the brush GU controls the relays for resetting the floor push-button relays. It includes a continuous strip which is connected to supply line L2 and contact segments for the 2nd. 3rd. 4th and 5th iloors.

The down side of each selector conipriscs a duplicate of the up contact meinbers, except for a reversal of the order of the Contact segments and a slight change in the relative position of the various groups to compensate for the different direction in which the car approaches the door.

A series of dotted lines numbered, 1 tively, 1st, 2nd, 3rd, 4th, 5th and 6th, are shown upon each floor selector to indicate the position oi the movable arn c with l erence to the contact segments in accordance with the position of each car with to the floors between which it operates.

Also, each contact segment corres ending to a floor is numbered to indicate the floor with which it is associated.

At times the attendant on the car i may desire to operate it without stopping at the floors for which stop-push buttons have been operated; for example, when car A is fully loaded. Therefore, the car A is provided with a push button switch 28 which may e operated to cut out the signals in the car and the corresponding floor lamps when it is desired to pass the floors for which signals have been given. Car B is provided with a similar switch 29 for the same purpose.

It will be noted that the contact strip associated with the brush GU on the floor selector arm FSA, the function of which is to cause resetting of the operated signal relays, supplied with current by any of a circuit which extends through the by-pass button 28. In this manner, the operation of the bypass button to prevent a car from receiving registered signals, lso operates to prevent the resetting of the signal relays as the car passes the corresponding floor. This operation, therefore, leaves the registered and in condition for reception by the next following cars to approach the corresponding fioor in the proper direction.

The operation of the system is as follows: assuming that the cars A and B are standing at the 1st iloOr landing and that a pas-- senger waiting at the 2nd floor press-es the up button 2U, then the standing lamps SLA and SLB in. the c i and B and the corresponding floor larn, lfU and L2U will be lighted to indicate that an up stop is to be made at the 2nd door.

The operation of push-button 2U closes a circuit extending from line conductor lil through conductor 7, the cent-a t members of push-button 2U, conductor 8, the coil of push-button relay 2UE, conductor 9, the normally closed contact members of the 2ct relay 2US and conductor 10 to line conductor L2. Contact members Z) of the relay 2UP, in closing, complete a circuit for the signal lamps and for the floor lamps for the second floor which extends from supply conductor L1, through conductor 31, the contact members on push button relay 2Ull, and JOIldUClZOI 32 to a junction point with conducthrough conductor 33 to the contact segment 3%, the brush CU oi" floor selector arm MA, contact segment 35, conductor 36, floor lamp LEZU, conductor 37, puslrhutton switch 28, and conductor 38 to supply line L2. i-lnother branch of the circuit extends through conductor 39, contact segment ll), brush contact strip ll, conductor 42, standing lamp Elli-' 1, conductor 43, contact members and 16 of up and down di- -ection switches 11 and 13, conductor ie, switch and conductor 38 to supply line L2,

lnasn'iuch as car is also standing at the 1st floor, another branch of the circuit will extend through conductor a5, contact segment all brush MU, contact segment 47, conductor 418, floor lamp L2U, conductor 49, push-lnitton switch 29, and conductor 00 to supply line L2. A circuit is also completed through condnctor 51, contact segment 52, brush PU, contact strip 53, conductor 54, standing lamp SLB, conductor 55, contact members 17 and 18 of up and down direction switches 12 and 141;, conductor 56, switch 29 and conductor to supply line L2.

The operation of relay 2UR also completes a self-holding circuit from supply line li1,

conductor 53, the upper contact members a of relay 2UR. conductor 59, the coil of relay 2UR and the contact members of reset relay 2U S to supply line L2. The illumination of standin lamp SLA will, therefore, indicate to the attendant on car A that there is a passenger waiting at the second floor who dosires to travel upwardly. The car is as sumed to normally operate at such high speeds that, in order to stop at a floor, the attendant must center the car switch (not shown) when the car is at a distance from that floor greater than the distance between two adjacent floors. That is, the car switch must be centered before the car arrives level with the floor preceding the one at which a stop is to be made. Therefore, when the car is standingat a floor and the signal is given to stop at the next floor, the attendant should operate the controls to make the one floor run at a speed much lower than the usual high speed. The attendant on car A in our assumed condition of operation will, therefore, start from the first floor by operating the car switch to allow the car to travel only it a low speed. i

The car may be stopped by the attendant centering the car switch when the car is at such distance rroni the second floor as his teaches him is proper to cause the level with loor, or any of the landing devices for automatically the car at the floor may be used ial system, with the result that hich the automatic landing decar to, stop automatic stopping with our the point a tor One branch of the circuit extends vices are to be placed in action will be indicated by the operation of the signal lamps HLA and SLA. A typical device of this character is illustrated in copending application of E. M. Bouton, Serial No. 731,921, filed August 14, 1924, and assigned to the Westinghouse Electric & Manufacturing Company, which discloses a variable-voltage system of control embodying a motor for driving the car and a generator for controlling the motor that is provided with a series field winding for varying the generator excitation automatically in accordance with the motor load. With this system, the distance required for the car to decelerate from any given speed and stop at a floor is constant regardless of variation in the load upon the elevator, and, therefore, the elevator may be considered as having a fixed predetermined zone of deceleration.

In addition to disclosing a variable-voltage system of control for elevators in which the car has a fixed zone of deceleration, the Bouton application also discloses means for automatically initiating deceleration of the car when it enters the zone of deceleration for any floor to bring the car to a stop at the landing. This means comprises devices for causing the car to continue traveling even though the car switch may be centered and inductor relays carried by the car and energized when the car switch is centered but inoperative to control the car until the car passes inductor plates stationarily mounted in the hatchway at the beginning of the fixed deceleration zone for the floor whereupon the relays will be actuated to automatically initiate deceleration of the car to bring it to rest at the floor level.

Assuming that the car A answers the second-floor call and then continues its upward run, as the car leaves the second floor the brush GU on the selector arm MA will move to bridge the contact segment and the contact strip 64, thereby energizing the coil of reset relay 2US and resetting the push-button relay 2UR. The resetting circuit extends from the supply line L-1 through conductor 58, the coil of reset relay 2US, conductors 62 and 63, contact segment 60, brush GU, and contact strip 64 to supply line L2.

Assuming that a waiting passenger at the 4th floor presses the push button 4U at the time car A is starting up from the first floor and car B is standing at the 1st floor,

then a circuit will be partially completed for the up floor lamps at the 4th floor and the signal lamps in the cars.

A self-holding circuit for the push-button relay 4UR is established from supply line L1, through conductor 58, the upper contact members a of relay 4UR, conductor 65,

the coil of relay tUR and the contact members of reset relay 4US to supply line L2.

As the car A ascends and approaches the point which is slightly in advance of its proper slowdown distance from the 4th floor, it will pick up the signal for the 4th floor by the brush EU on the arm MA bridging the contact segment 66 and contact strip 70 and thereby completing the circuit and lighting the high speed lamp HLA in the car. At the same time, the brush CU will bridge the contact segments and 76, thereby lighting the fioor lamp L4U. The lighting of the car lamp HLA signals the attendant to center the car switch for the 4th floor stop, and the lighting of the floor lam L4U indicates to waiting passengers at the 4th floor tf' lhat the car A will make an up stop at that oor.

The zone of operation of the car A, during which it is possible for the car, while running, to receive a signal to stop at the fourth floor, is defined by the position and length of the contact segment of the group under the contact EU of the floor selector FSA. As may be readily seen from an inspection of Fig. 1., this zone, in the embodiment of our invention, extends from a point approximately one-quarter of the floor below the second floor to a point about one-quarter of the floor below the third floor.

Assuming that the distance required for the car to decelerate from its normal high speed to a stop is equal to one and one-quarter times the distance between adjacent floors, it is obvious that, to effectively signal a car to stop at any floor, it is necessary that the push button shall have been operated prior to the time at which the car arrives at a point one and one quarter of a floor below the floor at which it is desired to stop so that the car may be stopped level with the desired floor without unnecessarily overrunning the floor. For this reason, the signalzone for the fourth floor terminates onequarter of the floor below the third-floor level, that is, the next adjacent floor. This relation is maintained throughout the floors served by the elevator.

Therefore, the operation of the signal tells the attendant not only that a stop is to be made but it also tells him the point in the car travel at which he must perform some operation of the controlling system which will result in stopping the car accurately level at the signaled floor.

For example, when our signal system is to be used in connection with the automatic stopping system shown in the copending application of E. M. Bouton referred to above, the attendant is notified not only that a stop is to be made but that he should immediately center his car switch in order that the car shall be brought to a stop accurately level with the fourth floor.

Inasmuch as car B has not left the first floor, no signal through its lamps will be completed.

The completed circuit for the 4th-fioor lamp and the car lamp HLA extends from supply line L1, conductor 72, the lower contact members Z) on relay 4UR and conductor 73 to a junction point with conductor 74. One branch of the circuit is continued through conductor 74, contact segmen 75, brush CU, contact segment 76, conductor 77 to floor lamp L4U, conductor 37, by-pass switch 28, and conductor 38 to supply line L2. The other branch is continued through conductors 73 and 78, contact segment 66, brush EU, contact strip 70, conductor 80, 'higlrspeed lamp HLA, conductor 81, bypass switch 28, and conductor 88 to supply line conductor L2.

After the car has completed the stop at the 4th floor and again starts upward, the

brush GU on the selector arm MA will move to the point where it bridges the contact segment 79 and the contact strip 64, thereby energizin the reset relay 4US and restoring push-button relay 4 UR to prevent the 4th floor signal from being picked up again. The resetting circuit extends from supply line L1, through conductor 58, the coil of rest relay 4US, conductors 82 and 83, contact sec-merit 79, brush GU and con tact strip 64 to supply line L2.

Assuming that a waiting passenger at the 5th floor presses the push button 5U after the car A has passed the point for picking up the up high-speed signals for the 5th floor but before it arrives at the 4th floor landing, then a circuit is partially com pleted for the standing lamps SLA and SLB in the cars A and B. A hold-down circuit for the puslrbutton relay 5UR is established from the supply line L-1, through conductor 58, the upper contact members of relay 5UR, conductor 84, the coil of relay 5UR and the contact members of reset relay 5US to supply line L2.

When the car A comes to a stop at the 1 4th floor, the brush EU will bridge contact segment 85 and contact strip 41, while the up direction relay 11, being deenergized by the stop, will close its cont-act members 15, thereby completing the circuit from the push-button relay 5UR and lighting the standing lamp SLA, to indicate to the attendant that a stop is to be made at the next (5th) floor. At the same time, the brush DU will bridge the contact segments 86 and 87 and light the floor lamp L5 U to indicate to the waiting passengers at the 5th floor that car A will make an up stop at that floor.

The completed circuit for the lamps SLA and L5U extends from supply line L1, through conductor 88, the lower contact members of relay 5UR and conductor 90 to a junction point with conductor 91. One branch of the circuit is continued through conductor 91, contact segment 86, brush DU,

contact segment 87 conductor 92, floor lamp L5U, conductor 37, push-button switch 28 and conductor 38 to supply line L2. The other branch of the circuit extends through conductor 93, contact segment 85, brush FU, contact strip 41, conductor 42, standing lamp SLA, conductor 43, contact members 15 and 16 on up and down direction switches 11 and 18, conductor 44, by-pass switch 28 and conductor 38 to supply line L2.

Inasmuch as car B is still standing at the 1st floor landing, the signal for the 5th floor will not be completed through either one of its signal lamps.

After the car A has completed the stop at the 5th floor and again starts upward, the brush GU on the selector arm MA moves to the point where it will bridge the contact segment 94 and the contact strip 64, thereby energizing the reset relay 5US and restoring puslrbutton relay 5UR. The circuit for resetting the push-button relay 5UR extends from the supply line L1 through conductor 58, the coil of reset relay 5US, conduc tors 95 and 96, contact segment 94, brush GU and contact strip 64 to supply line L2.

After the car A has been brought to the top floor and has started down, it will be assumed that car B has been brought to the 6th or top floor, that it has taken on a number of passengers who desire to get oil at the 3rd and 2nd floors and that it has started down. As the passengers call their stops, the attendant presses the car push buttons B3 and B2 to so set the signaling system that it will indicate, as the car nears the 3rd and 2nd floors, that stops should be made at those floors.

The car push buttons B3 and B2 will be held in by the holding coil 24 until the down trip is completed.

The pressing 01 the push button B3 partially completes a circuit for the down lamps at the third floor and the signal lamps in the cars.

As the car B descends and approaches the point which precedes its proper slow-down distance from the third floor landing, .it will pick up the stop signal for the third floor by the brush TD on the arm MB bridging the contact segment 98 and contact strip 99, thereby completing the circuit and lighting the high-speed lamp HLB in the car.

At the same time, the brush VD will bridge I the contact segments 100 and 101, thereby lighting the floor lamp L31). The lighting of the car amp HLB signals the attendant to center the car switch for the third floor stop and the lighting of the floor lamp L31) indicates to waiting passengers at the third floor landing that the car B will make a down stop at that floor.

The completed circuit for the floor lamp L31) and the car lamp HLB extends from supply line L1, through conductor 104, the contact members of car push button B3, conductors 105, 106 and 107 to a junction point with conductor 108. One branch of the circuit extends through conductor 108, contact segment 98, brush TD, contact strip 99, conductor 110, conductor 111, highspeed lamp HLB, conductor 112, switch 29 and conductor 50 to supply line L2. The other branch of the circuit extends through conductor 113, contact segment 100, brush VD, contact segment 101, conductor 114, floor lamp L3D, conductor 49, by-pass switch 29, and conductor 50 to supply line L2.

As the car leaves the 3rd floor landing, the brush VD will leave the contact segments 100 and 101, thereby breaking the signal circuit for the 3rd-fioor lamp L3D'.

As the car moved downwardly prior to arriving at the third floor level the brush TD left the contact strip 98 thus breaking the circuit for the high-speed lamp HLB.

The car button B2, after being pressed, is held in its position by the holding coil 24 to partially complete the circuit for signalling a stop at the 2nd-floor landing, as noted above. Therefore, when the car B comes to a stop at the 3rd-fioor landing, the brush SD will bridge the contact segment 116 and the contact strip 117, while the down direction relay 14, being deenergized by the stop, will close its contact members 18, thereby completing the circuit from the car button B2 and lighting the standing lamp SLB to indicate to the attendant that a stop is to be made at the next (2nd) floor.

At the same time, the brush UD will bridge the contact segments 118 and 119 to complete the branch circuit for lighting the floor lamp L2D' to indicate to waiting passengers at the 2nd floor that car B will make a down stop at that floor.

The completed circuit for the lamps SLB and L2D extends from supply line L-1, conductor 104, the contact members of car button B2, conductors 121 and 122 to a junction point with conductor 123. One branch of the circuit extends through conductor 123, contact segment 116, brush SD, contact strip 117, conductors 124 and 54, car lamp SLB, conductor 55, the contact members 17 and 18 of the up and down direction switches 12 and 14, conductor 56, by-pass switch 29 and conductor 50 to supply line L2. The other branch of the circuit extends through conductor 125, contact segment 119, brush UD, contact segment 118, conductor 126, floor lamp L2D', conductor 49, by-pass switch 29 and conductor 50 to supply line L2.

While the car buttons B3 and B2 are held in their in position, after being pressed during the down trip of the car B, it will be noted that the signal lamps which were lighted as signals for the stops at the 3rd and 2nd floors, were extinguished by the corresponding brushes moving off the contact segments.

As the car B nears the 1st floor, the extension 27 will strike the pivoted member 26 on the down limit switch DLB and actuate it to momentarily break the circuit for the holding coil 24, thereby releasing the car buttons B3 and B2. The car buttons are now in their out position and are ready to be operated again upon the next trip of the car.

It will thus be seen that our improved system provides for transmitting stop signals to the attendants on the cars and to the waiting passengers at any time that the cars are in position to make the stops for which signals have been given.

\Vhile we have illustrated and described the system as embodying electric lamps for the signaling devices in the system, it will be understood that any other form of signaling device may be employed with equal advantage.

The embodiment of our invention disclosed herein is merely illustrative, the apparatus and the circuits involved being capable o1 adaptation to varied conditions of service. Therefore, we do not desire to be limited to the details of the system shown, except as defined in the appended claims.

We claim as our invention:

1. In a signal system for an elevator car operable past a floor, operating means for said car, including controlling means on said car, adapted to decelerate said car under normal conditions of speed and any condition of load in a substantially fixed distance, means for notifying a car attendant to move said controlling means to carstopping position, and means controlled by the ear position with respect to said floor for operating said notifying means when the car reaches that position in its travel with respectto said distance and floor at which the attendant must move the controlling means to car-stoppin r position to stop said car accurately at sai floor.

2. In a signal system for an elevator car operable past a floor, operating means for said car including controlling means on said car adapted to decelerate said car under normal conditions of speed and any condition of load in a substantially fixed distance, means definin a stopping zone corresponding to said fixed distance immediately in advance of said floor, means defining a signal zone in advance of said stopping zone, a signal on said car for notifying a car attendant to move said controlling means to car-stopping position and means operable when said car is in said signal zone for operating said signal.

3. In a signal system for an elevator car operable past a floor, operating means for said car including controlling means on said car adapted to decelerate said car under normal conditions of speed and any condi- 3 tion of load in a substantially fixed distance, means defining a stepping zone corresponding to said fixed distance in advance of said floor, a si nal zone in advance of said stopping zone, a signal on said car for notifying a car attendant to move said controlling means to car-stopping position, 'manually operable call-registering means on said car and manually operable call-re istering means at said floor both operable to condition said signal for operation, and means operable when said car is in said signal zone for operating said signal.

4%.. In a signal system for an elevator car operable past a plurality of floors and having a deceleration distance from normal high speed greater than the distance between ave adjacent floors, signal registering means at said floor, signal registering means on said car, a pair of signal receiving devices on said car, means operable in correspondence with movements of said car for rendering either of said signal registering means eii'ective to operate one of said nals when said car approaches the beginning of said deceleration distance for the corresponding floor and operable for rendering either of said signal registering means effective to operate the other of said signal devices When said car is Within the deceleration distance for the corresponding floor.

5. In a signal system for an elevator car operable past a plurality of floors, signalregistering means for each of said floors, a pair of distinguishable signal-receiving means on said car, means operable in correspondenc with the position of said car for rendering said signal-receiving means effective to receive registered signals when said car approaches the corresponding floor, and means dependent upon the speed of said car for determining which of said signalreceiving means is to be actuated.

6. In a signal system for an elevator car operable past a plurality of floors having a deceleration distance "from normal high speed greater than the distance between adjacent floors, signal-registering means for each floor, a pair of signal-receiving means on said car, means operable in correspondnce with the position of said car for renng said signal means eitective to receive register-er signals when the ear is within oifl erent predetermined distances of the corresponding floor, and means dependent upon the speed of operation of said within said distances for determining which of said nal rcceiving 11 cans is to be actuated.

7. in a signal system for an elevator car operable past a plurality of floors having a deceleration distance from normal high speed greater than the distance between adjacent floors, signal-registering means for each floor, a pair of signal-receiving means on said car, means operable in correspondence with the position of said car for rendering said signal means reflective to receive registered signals when the car is within different predetermined distances of the corre sponding floor, and means dependent upon the operation of said car within one oi said distances at a predetermined speed for actuating one of said signal-rceiving means and upon the operation of said car within the other of said distances at another speed for actuating the other oi said signarreceiving means.

8. In a signal system for vehicles operable between a plurality of stations and having a deceleration distance from normal high speed greater th an the distance between two adjacent stations, a signal for indicating the point at which deceleration of ti o vehicle must be initiated in order stop the vehicle at a station, a second signal for indica lg that a stop is to be made at a distance from the position of the vehicle less than the normal slow-down distance, signal-registering means for each of said stations for conditioning said signals for operation, means perable in correspondence with the position or" said vehicle for operating iu signals as the car approaches said stations, and means for rendering said second signal ei'lective only when said vehicle is stationary.

9. in a signal system for elevators ope" able be ween a plurality oi floors, call-si nal-registering means for said floor, means for actuating said call-registering means, means defining signal-receiving zones for each floor within which signals may be received by said elevator for stopping at the corresponding floor, means defining other zones within which signals may received "for stopping at the corresponding floor, a signal-receiving means on said elevator for each of said zone-defining means, and means dependent upon the speed oi"? said levator within said Zones for determining which of said receiving means is to be effective.

10. In a signal system for an elevator car operable past a plurality or floors and having a deceleration distance from normal high speed greater than the distance between adjacent floors, two signal devices on said car, manually operable signal-registering means for each of said floors, means operable in correspondence with the position of said car for rendering said signal. devices eilective to receive registered signals as the ear arrives within predetermined distances of the corresponding floors, and means operably responsive to conditioning said car for movement for rendering one of said signal devices effective, and operable when said car is conditioned to be stopped for rendering the other of said signal devices effective.

11. In a signal. system for an elevator car operable past a plurality of floors and having a deceleration distance from normal high speed greater than the distance between adjacent floors, two signal devices on said car, manually operable signal-registering means for each of said floors, means operable in correspondence with the position of said car for rendering one of said signal devices effective to receive a registered signal when the car approaches the beginning of said deceleration distance for the corresponding floor and for rendering said other signal device ettective to receive registered signals when the car is within the deceleration distance for the corresponding floor and means operably responsive to conditioning said car for movement for preventing operation of said last named signal device.

12. In a signal system for an elevator car operable past a plurality of floors and having a deceleration distance from normal high speed greater than the distance between adjacent floors, two signal devices on said car, circuits therefor manually operable signal-registering means for each oi? said floors operable to partially complete a circuit for both of said signal devices, means operable in correspondence with the position of said car for completing said circuits when said car arrives Within predetermined distance of the corresponding floors, and means operably responsive to conditioning said car for movement permitting completion of the circuit for one of said signal devices and for preventing completion of the circuit for the other of said signal devices and operable when said car is conditioned to be stopped for permitting completion of the circuit for the other of said signal devices.

13. In a signal system for an elevator ear operable past a plurality of floors and having a deceleration distance from normal high speed greater than the distance between two adjacent floors, a pair of signals on said car, means operable when said car is moving within a zone of operation immediately preceding said deceleration distance for any floor for rendering one of said signal devices effective to indicate to the attendant that he must immediately condition said car to stop at the floor approached and operable when said car is within said (ICCQlGPtLtlOD distance and operating at any speed below normal high speed for rendering said other signal device efiective to indicate to the attendant that a stop is to be made at a floor within the deceleration distance from the then position of the car, whereby the attendant will be notified that he mustoperate his car at reduced speed.

In testimony whereof, We have hereunto 

